This question concerns the right side of the hydrostatic pump as determined by sitting in the operators seat facing forward. The right control stick is cable attached to the neutral adjustment bracket, which consists of a control arm (the horizontal bracket) and the Spool ( the vertical rod that goes into the pump casing). When operating the right control stick forward or reverse, the horizontal bracket actually moves up and down about 1/8" along with its moving on its axis making it appear to be loose on the spool or the spool loose in its casing. The right control arm and spool actually appear to have a wobble in it. The same assembly on the left side that is attached to the left control stick only moves on its axis, no wobble. I hope I've described this clearly enough to make sense as I couldn't figure out how to attach a PNG photo file to this question. Any ideas as to what causes this wobble and what any future failures could be in store here?